Gluer for tray-box machines.



E. W. LABOMBARDB.

GLUBR FOR TRAY BOX MACHINES.

APPLICATION FILED FEB.17.1913. RENEWED JAN.31.1914.

1,1 12,812. Patented Oct. 6, 1914.

Zdz'inecsea: fnven Z 072 3. y EWZQZOIWZQTF? 24 ELIE W. LABOMBARDE, 0FNASHUA, NEW HAMPSHIRE.

GLUER FOB- TRAY-BOX MACHINES.

Specification of Letters Patent.

Patented Oct. 6, 1914..

Application filed February 17, 1913, Serial No. 748,817. Renewed January31, 1914. Serial No. 815.833.

To all whom it may concern:

Be it known that I, ELIE IV. LABOMBARDE, a citizen of the United States,residing at Nashua, in the county of Hillsboro and State of NewHampshire, have invented certain new and useful Improvements in Gluersfor TrayJiox hIachines, of which the following is a specification.

This invention relates to adhesive-applying mechanism, and refersparticularly to machines for making boxes of the type com.- monly knownas tray boxes, the blanks having wings and tongues which are to be gluedtogether.

"1 he folding operation of boxes of this type is materially interferedwith if the glue is applied to other than the necessary andpredetermined portions of the blanks.

-I-leretof0re, it has been a common practice to apply the glue while theblanks are stationary. If the blanks are being supplied to the foldingmechanism by continuously operating mechanism, such as endless belts, ithas been customary to temporarily arrest the blanks and suitable pads orother devices apply glue to the selected members or portions of theblanks. This necessarily interferes with the rapidity of operation ofthe machine. The means which best facilitate the application of glue tothe blanks has been found to consist of wheels or disks, but so far as Iam aware, it has not been found practical prior to iny-presentinvention, to employ wheels or disks'which will apply the glue to onlyselected portions of the blanks;

The principal object of my present invention is to provide gluingmechanism suitable for use in connection with machines which fold trayboxes, or analogous boxes, said gluing mechanism having rotaryglueapplying disks or wheels, means being provided for deflectingportions of the blanks which travel past such wheels or disks, that arenot to have glue applied thereto, to a plane or path of movement thatwill prevent contact with the wheels or disks of those portions of theblanks which are to be left unglued. I will state here that I employ theword glue merely as a generic term for any adhesive that is suitable andpreferred.

My invention consists in the improvements which I- will now proceed todescribe and claim. v p

Of the accompanying drawings, forming a part of this specification,Figure 1 is a plan view of so much of the mechanism as is necessary toillustrate my present improvements. Fig. 2 is aside elevation of thesame.

Similar reference characters indicate the same or similar parts in bothfigures, numeralsbeing employed to designate some of the parts of themechanism, whileletters are employed in connection with those portionsof the illustrated mechanism which particu-' larly form thesubject-matter of my presentapplication.

The frame 20 of the machine supports a driven shaft 38, and by means ofother shaft-s, not shown, and driving and supporting pulleys, alsosupports a pair of carrier belts 60, 61, which travel continuously inthe direction of the arrows shown in the drawing; The cooperatingstretches of the carrier Its 60, 61, do not grip the blanks tightly.Stop devices to aline the blanksbetween the carrier belts comprise arms74: carried by brackets secured to a rock-shaft 75. An arm 76 of saidrock-shaft is connected to a pitman 77 adapted to slide in a suitableguide bearing 78, said pitman having a roll 7 9 which is actuated by acam 80 on shaft 38, the timing of the operation of said cam being suchthat the stop arms 74 Will rise and fall, keeping the position shown inFig. 2, long enough to engage the front edge of a blank at two points onopposite sides of the central portion of'the blank which is grasped bythe carrier belts, so that the blank, if askew, will be brought up,squarely against the bent ends of the stop arms, said arms then risingand permitting the blank to be advanced by the carrier belts, with theportions 0, (Z, c, of the blanks passing over glue-applying disks 81carried by a shaft 217, the lower portions of the disks rotating in aquantity of glue in a suitable receptacle 218.

In order that the blanks will be instantly gripped by the belts 60, 61,after the stops 74 rise, I employ a pressing-roll 91, carried by an arm92 of a rock-shaft 93 having-a toothed segment 94 meshing with a toothedsegment 95 carried by the rock-shaft which carries the stop arms. As thecam causes the rock-shaft 75 to oscillate, the segment 95 of the latterwill actuate the rock shaft 93 in a direction to cause the pressing roll91 to bear upon the upper carrier belt 60 the moment that the stop arms74 rise, so that the released blanks will be immediately gripped by thetraveling belts and caused to travel past the glue disks 81.

The particular form of blank illustrated in Fig. 1 comprises the bodyportion a, side flaps or wings Z), corner flaps or tongues c, and endflaps or Wings aZ. lVith this particular form of blank it is necessarythat glue be applied only to the flaps or wings (Z, and not to thecorner tongues 0. Of course, with the construction so far described, theblanks, as they travel beyond the position shown in Fig. 1, would havestripes of glue applied to all of the projecting portions at each end ofthe blank. To select the end portions which shall have glue appliedthereto, or in other words, to deflect or divert away from the gluedisks those portions which are not to have glue applied thereto, Iemploy a pair of deflector arms 9 which are carried by arms h dependingfrom a rock-shaft e mounted iii-standards is, said rock-shaft having anarm Z. A spring m coiled upon the shaft-z and engaging the arm Z and oneof the standards it", has a tendency to normally hold the rock-shaft andthe deflector arms g in the position shown in Fig. 2, in opposition tothe cam presently described. To the arm Z is connected the upper end ofa pit man n, the other end of said pitman having a yoke 0 bestridingshaft 38, and having a roll 7) which is actedupon by a cam g carried bysaid shaft 38.

The cams 80 and g are so shaped and positioned relatively to each otherthat during the operation of the machine, just after the blank reachesthe temporarily arrested position shown in Fig. 1, the arms g, the tipsof which are then under two of the corner tongues 0, will swing upwardlyand some what rearwardly, thus lifting those two corner tongues.Immediately following this the stop arms 74: rise and the starting roll91 descends, ,so that the blank is pinched tightly enough between thetraveling carriers 60, 61, to advance the blank with the end flaps orwings cZ passing under the arms g. It will be noticed that thedepression of the cam q is quite short. This causes the arms g toimmediately swing back to the position shown iaiaeia in Fig. 2. The endflaps or wings d are now under the arms 9 and will contact with theperipheries of the glue disks, but since the other two corner tongues cnaturally retain their positions in the plane of the carrier belts, saidother two corner tongues 0 will ride on top of the arms g, and,therefore, have no glue applied thereto.

It will now be understood that I have provided automatically operatingdeflectors which divert portions of the blank so that they travel in aplane out of the plane of the surface of the glue disks, the end flapsor wings (Z being selected as the ones which are permitted to have glueapplied thereto.

I claim 1. Mechanism for applying an adhesive to selected portions ofbox blanks, comprising an adhesive applier, means for carry mg a blankpast said applier, and a detlector for diverting a portion of the blank1nto a path of travel out of the plane of the applier.

2. Mechanism for applying an adhesive to selected portions of boxblanks, comprising a carrier for the blanks, guiding mechanism forcausing different portions of the blanks to travel in different planes,and means for applying an adhesive to the portions traveling in one ofsaid planes.

Mechanism for applying an adhesive to selected portions of box blanks,comprising a' carrier for the blanks, rocking arms for deflectingportions of said blanks, and means for applying an adhesive to theportions of the blanks which are not deflected.

4. In mechanism of the character described, the combination with a gluewheel, of means for feeding blanks past said glue wheel, a deflector,and means for operating said deflector to cause it to divert a selectedportion of the blank to cause it to move past the glue wheel withoutcontact therewith.

Tn testimony whereof I have aiiixed my signature, in presence of twowitnesses.

ELIE W. LABQMBARDE. Witnesses:

MARY E. LUND, WyH. SIDEBOTHAM.

